• 11. 2014 -- 11. 2014 Max-Planck-Institute for the Physics of Complex Systems(MPIPKS), Dresden, Germany.
• 10. 2013 -- 12. 2013 National Institute for Fusion Science(NIFS), Toki, Japan.
• 11. 2013 -- 11. 2013 Itoh Research Center for Plasma Turbulence, Kyushu University, Fukuoka, Japan.
• 01. 2009 -- 06. 2009 Royal Institute of Technology(KTH), Stockholm, Sweden.